I have been travelling Asia for a few months and stayed in a bunch of short term rentals, this one has been my favorite so far.
Two things I most enjoyed were the location and the size.

You can't find much better location. It's very close to Asok BTS. which is arguably the most convenient BTS with it's connection to the MRT line and proximity to everything.
. You only have to walk about 10 seconds exposed to the sky when going to the BTS, the rest of your walk is covered.This is quite important as Bangkok can be very hot and rain a lot.
That extra 15 sqm makes a big difference for me. Similarly priced units are usually smaller.
If I could change one thing: it was difficult for me to dry my clothes. Could use another couple dryer racks, or even better, a drying machine.